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241. Rare earth metal: Any of a large class of chemical elements including scandium (atomic number 21), yttrium (39), and the 15 elements from 57 (lanthanum) to 71.

242. Piano Sonata No.23 in F minor , Op. 57 Appassionata ""

243. "We've now got 57 Predators up, 24 hours a day, 365 days a year, looking at different target points around the world, " says Air Force Maj. Gen. James Poss.

244. In the surgical group there were 10 patients (71.39%) with pelvic adhesion, after operation chronic salpingitis was found in 8 cases (57.14%) .

245. Gross head of the project between head pond and tailrace is estimated at 144.57 meter.

246. She lit the tallest - ever Olympic cauldron , which rises to 57 meters.

247. Methods 57 cases of early breast carcinoma were treated by wide local excision, axillary nodes dissection and postoperative radiotherapy. All patients received chemotherapy and endocrinotherapy.

248. The European aircraft manufacturer employs 57,000 people from 88 countries.